BRUSH UNIT AND DC MACHINE
PROBLEM TO BE SOLVED: To provide a brush unit capable of preventing occurrence of undercommutation. SOLUTION: A brush unit 3 comprises a substantially pyramidal brush 11 having a forward end part being pressed against a commutator 9. Upstream side in the rotational direction of the commutator 9 of t...
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Format: | Patent |
Sprache: | eng |
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